Front Cover Assembly and Terminal

1. A front cover assembly, comprising: a frame, having a first wall and a second wall connecting to the first wall, and defining a receiving cavity; a cover glass partially received in the receiving cavity of the frame, the cover glass having a light exiting face and a lateral face facing the frame, the cover glass having a step portion at the lateral face, the step portion having a first face and a second face, a first gap defined between the first face of the step portion and the first wall of the frame, a second gap defined between the second face of the step portion and the second wall of the frame, a third gap defined between the lateral face of the cover glass and the frame; and a waterproof glue, located at the first face and the second face of the step portion of the cover glass, at the first wall and the second wall of the frame, wherein the waterproof glue fills the first gap and the second gap, and the third gap is void and communicates with an environmental empty space located at a light exiting side, wherein the lateral face of the cover glass has a first portion and a second portion, the step portion is deployed at the first portion, the second portion is connected to the light exiting face of the cover glass, and the second portion is a curved face and exposed to the environmental empty space located at the light exiting side, wherein the first face and the second face of the step portion form an obtuse angle therebetween, and the obtuse angle faces the first wall and the second wall of the frame.

2. The front cover assembly according to claim 1 , wherein the first wall is a top wall of the frame, the second wall is a lateral wall of the frame, and a round corner portion connects the first wall and the second wall.

3. The front cover assembly according to claim 1 , wherein the waterproof glue and the step portion engage each other by interference fit.

4. The front cover assembly according to claim 3 , wherein the step portion further comprising a third face extending from the second face, the third face and the second wall defining a fourth gap therebetween, a length of interference of the waterproof glue extending from the second gap to the fourth gap ranges from 0.03 mm to 0.10 mm.

5. The front cover assembly according to claim 1 , wherein the waterproof glue forms a glued path along an extended direction of the step portion.

6. The front cover assembly according to claim 1 , wherein the frame has a first degree of softness, the waterproof glue has a second degree of softness, and the second degree of softness is less than the first degree of softness.

7. A terminal, comprising: a rear cover, a control assembly, and a front cover assembly, the rear cover defining a receiving space, the front cover assembly and the control assembly received in the receiving space, the control assembly coupled to the front cover assembly, the front cover assembly comprising: a frame defining a receiving cavity; a cover glass received in the receiving cavity of the frame, the cover glass having a light exiting face and a lateral face extending from the light exiting face, the cover glass having a step portion located at the lateral face and extending toward the frame; a gap defined between the step portion of the cover glass and the frame; another gap defined between the lateral face of the cover glass and the frame; and a waterproof glue filling the gap and directly contacting the step portion and the frame, leaving the another gap void to communicate with an environmental empty space located at a light exiting side, wherein the lateral face of the cover glass has a first portion and a second portion, the step portion is deployed at the first portion, the second portion is connected to the light exiting face of the cover glass, and the second portion is a curved face and exposed to the environmental empty space located at the light exiting side, wherein the frame has a first wall and a second wall connecting to the first wall, the step portion has a first face and a second face, and the first face and the second face of the step portion form an obtuse angle therebetween, and the obtuse angle faces the first wall and the second wall of the frame.

8. The terminal according to claim 7 , wherein the step portion extends along a circumferential periphery of the cover glass.

9. The terminal according to claim 7 , wherein the gap comprises a first gap defined between the first face of the step portion and the first wall of the frame and a second gap defined between the second face of the step portion and the second wall of the frame.

10. The terminal according to claim 9 , wherein the first wall is a top wall of the frame, the second wall is a lateral wall of the frame, and a round corner portion connects the first wall and the second wall.

11. The terminal according to claim 7 , wherein the waterproof glue is applied on the first face and the second face of the step portion and is abut on the first wall and the second wall of the frame.

12. The terminal according to claim 7 , wherein the waterproof glue forms a glued path along an extended direction of the step portion.

13. A front cover assembly, comprising: a frame defining a receiving cavity; a cover glass received in the receiving cavity of the frame, the cover glass having a light exiting face and a lateral face extending from the light exiting face, the cover glass having a step portion located at the lateral face and extending toward the frame; a gap defined between the step portion of the cover glass and the frame; another gap defined between the lateral face of the cover glass and the frame; and a waterproof glue filling the gap and directly contacting the step portion and the frame, leaving the another gap void to communicate with an environmental empty space located at a light exiting side, wherein the lateral face of the cover glass has a first portion and a second portion, the step portion is deployed at the first portion, the second portion is connected to the light exiting face of the cover glass, and the second portion is a curved face and exposed to the environmental empty space located at the light exiting side, wherein the frame has a first wall and a second wall connecting to the first wall, the step portion has a first face and a second face, and the first face and the second face of the step portion form an obtuse angle therebetween, and the obtuse angle faces the first wall and the second wall of the frame.

14. The front cover assembly according to claim 13 , wherein the step portion extends along a circumferential periphery of the cover glass.

15. The front cover assembly according to claim 13 , wherein the gap comprises a first gap defined between the first face of the step portion and the first wall of the frame and a second gap defined between the second face of the step portion and the second wall of the frame.

16. The front cover assembly according to claim 13 , wherein the waterproof glue is applied on the first face and the second face of the step portion and is abut on the first wall and the second wall of the frame.

17. The front cover assembly according to claim 13 , wherein the waterproof glue and the step portion engage each other by interference fit.

18. The front cover assembly according to claim 13 , wherein the waterproof glue forms a glued path along an extended direction of the step portion.